Zabbix 2 Docker Containers cannot find eachother.

[SHLelieveld]

Hello All,

Thanks for checking and hopefully helping with our issue.

We have an Ansible playbook to start 4 zabbix containers:
-Zabbix-server
-Zabbix-frontend
-Zabbix-snmptraps
-Zabbix-java-gateway:

This in done through the following playbook parts:

- name: Start zabbix container
docker_container:
name: zabbix-server
image: zabbix-server:latest
state: started
restart: true
restart_policy: unless-stopped
hostname: zabbix-server-container
volumes:
- /usr/share/zabbix/snmp/mibs:/var/lib/zabbix/mibs
- /usr/share/zabbix/alertscripts:/usr/lib/zabbix/alertscripts
- /usr/share/zabbix/externalscripts:/usr/lib/zabbix/externalscripts
- /etc/openldap/certs:/var/lib/zabbix/ssl/certs
ports:
- "10051:10051"
etc_hosts:
"viper-server-remote": "{{ viperremote }}"
env:
MYSQL_DATABASE: "zabbix_{{ location }}"
MYSQL_USER: "{{ zabbix_db_user }}_{{ location }}"
MYSQL_PASSWORD: "{{ zabbix_db_password }}"
DB_SERVER_HOST: "172.17.0.1"
DB_SERVER_PORT: "3306"
ZBX_DEBUGLEVEL: "3"
ZBX_STARTPOLLERS: "10"
ZBX_STARTPOLLERSUNREACHABLE: "10"
ZBX_STARTJAVAPOLLERS: "5"
ZBX_STARTVMWARECOLLECTORS: "1"
ZBX_IPMIPOLLERS: "1"
ZBX_STARTPINGERS: "5"
ZBX_STARTESCALATORS: "25"
ZBX_CACHESIZE: "32M"
ZBX_TIMEOUT: "30"
ZBX_JAVAGATEWAY_ENABLE: "true"
ZBX_JAVAGATEWAY: "zabbix-java-gateway"
ZBX_JAVAGATEWAYPORT: "10052"

vars:
ansible_python_interpreter: /usr/bin/python3
tags:
- zabbix

##Don't mind indentations as they got lost in copy paste.

- name: Start zabbix java gateway container
docker_container:
name: zabbix-java-gateway
image: zabbix/zabbix-java-gateway:alpine-5.0-latest
state: started
restart: true
restart_policy: unless-stopped
hostname: zabbix-java-gateway
links:
- "zabbix-server"
vars:
ansible_python_interpreter: /usr/bin/python3
tags:
- zabbix

##Don't mind indentations as they got lost in copy paste.

These are 2 of the containers to link to eachother.
The containers start with no obvious errors in the log files. But in zabbix the JMX indicater remains red with the following message: "cannot resolve [zabbix-java-gateway]"



When I run docker inspect zabbix-java-gateway:
(selection)

"Hostname": "zabbix-java-gateway",
//
"Ports": {
"10052/tcp": null
},
//
"IPAddress": "172.17.0.4",


What do I do wrong?

All using zabbix LTS 5.0.x

Thanks for the help.